Simpson Multimeter

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Fisher77
    Badcaps Veteran
    • Feb 2016
    • 229
    • USA

    #1

    Simpson Multimeter

    I am trying to help someone repair there Simpson multimeter. The meter face says 262 series 3. The circuit board says 269-2. Now I would assume that this is a 269-2 that had the meter movement replaced with a 262-3 movement. There are 2 resistors blown in it. The values on the schematic for the 2 resistors are different for both meters. Does anyone have either of these meters that you can take a look at the value of the resistors and let me know what they are? I will add a pic of the board.

    Thanks
    Attached Files
    Last edited by Fisher77; 12-19-2016, 01:50 PM.

Related Topics

Collapse

  • TinkerTron
    Schematic vs. Reality: Where Are the Resistors on My Sharp Clock Radio? Model FY-70CH
    by TinkerTron
    Hey everyone,

    I'm currently working on a mid-70s Sharp Electronic Digital Clock Radio, Model FY-70CH. I found the service manual online, printed it out, and have been studying it for a while. My main reasons for tackling this are: (1) I want to learn electronics and figured I'd start with something I had on hand, and (2) I want to fix its issues. Right now, the radio sounds awful, has about 5V DC at the speaker terminals, and the alarm time setting doesn't work. But I'm not asking how to fix these problems.

    Instead, here's what's been bugging me so far:
    The schematic...
    03-06-2025, 02:03 PM
  • dj8452000
    How To Test a P-channel Trench Mosfet Using A Multimeter In Diode Mode
    by dj8452000
    I am new to electronics and I'm understanding most of what I'm reading but I have a mosfet on my board that I've identified as a P-channel Trench Mosfet. I haven't a clue how to test this and what I should expect to see with the multimeter probes. I am hoping someone with years more experience than myself can help me understand how to use a multimeter to read this. Please look at the drawing I have attached to this and can you try to explain to me what I should be doing with my multimeter in diode mode and what results I should expect from a good mosfet?...
    02-18-2025, 08:28 AM
  • brightest_z
    Hot Air Blew Away Resistors Near Bios
    by brightest_z
    Hi All - I'm in the midst or reprogramming the bios on my gen1 Surface Laptop Studio and I accidentally blew away 2 resistors nearby the bios. I don't have another board to measure values of the missing resistors and schematics aren't available, bbut the bios is a 6x5mm Winbond WSON8, W25R256JWPQ model. The traces are conductive to Pins 3 and 7 (IO2 & IO3 respectively) so I have reason to believe they are 10k pull up resistors since IO2&3 pins are used for Quad SPI instructions.

    Does anyone with more knowledge, and experience than I, know if this is the case?

    ...
    12-11-2024, 08:34 PM
  • jinu_j
    LED driver circuit. Burnt Resistors
    by jinu_j
    Hi Folks
    This has to do with a LED light driver rated for Output - DC36-65V 300mA. This is used to drive a 15W LED panel light.

    Now this does not work so opened up and found 2 resistors burnt to crisp. Sensing a learning moment, i looked around the circuit to figure out that it is built around the OB2538 chip. The circuit to a large extent follows the sample application circuit mentioned in the data sheet. I have traced the actual circuit and the same is also attached for reference.

    But i have some queries on this circuit
    1. The resistors that burnt to crisp...
    08-26-2020, 01:24 AM
  • trex66
    Craftsman 82345 Multimeter broke!
    by trex66
    My daily carry just stopped working only me. Started last week with the voltage flickering. Found one lead was broken and I ordered new ones. New leads didn't change anything, it displays “-1” on all settings but on continuity will give the tone when touching. Checked battery and found the fuse blown. Replaced fuse but same results. Cleaned the dial and led display and its parts. Board looks nice and clean no burned or broken components. Nothing traumatic happened to this multimeter I put it aside when I found the lead broken and didn't touch it until I got the neAnyone have any ideas what's...
    03-04-2025, 04:26 PM
  • Loading...
  • No more items.
Working...